Today at the top of my Gmail inbox was a link with the promise to explain “How I Lost 42 Pounds in 2 Months. Just Obey this 1 Rule, That’s All.” It occurred to me that fad diets are like monad tutorials. Of course, since Monads Are Like Burritos (and Tutorial is a functor), it follows that fad diets are like burrito tutorials. Which makes a certain amount of sense.